Portable computer



FIG. 1 is a front, bottom and right side perspective view of a portable computer showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a rear side elevational view thereof; and,

FIG. 7 is a left side elevational view thereof. 

The ornamental design for a portable computer, as shown. 